This Arcoroc Conical Headstart Beer Glass 29cl CE is the shape traditionally used to serve draft beer, and is CE stamped to allow draft dispense. The etched base creates a longer lasting head by releasing the bubbles of gas in the beer. The Conical range is fully tempered or toughened to make it 5 times stronger extending its lifecycle. Added safety comes from the toughening process- when the glass breaks the shards are not sharp to the touch.